The 2026 United States Senate elections are scheduled to be held on November 3, 2026, with 33 of the 100 seats in the Senate being contested in regular elections, the winners of which will serve six-year terms in the United States Congress from January 3, 2027, to January 3, 2033. Senators are divided into three groups, or classes, whose terms are staggered so that a different class is elected every two years. Class 2 senators were last elected in 2020, and will be up for election in this cycle.
All 33 Class 2 Senate seats and two Class 3 seats are up for election in 2026; Class 2 currently consists of 20 Republicans and 13 Democrats. If vacancies occur in Class 1 or other Class 3 Senate seats, that state might require a special election to take place during the 119th Congress, possibly concurrently with the other 2026 Senate elections.
There are two seats being defended by Democrats in states won by Donald Trump in 2024 (in both cases, by less than three percentage points): R+1.4 Michigan, where the incumbent is Gary Peters, and R+2.2 Georgia, where the incumbent is Jon Ossoff. Michigan elected Democrat Elissa Slotkin to the Senate in 2024 by 0.3 points; Georgia had no senate election in 2024.[1]
There is one seat with a Republican incumbent in a state won by Kamala Harris in 2024 (by 6.8 percentage points): Maine, where senator Susan Collins won her reelection to a fifth term in 2020 by 8.6 points; Angus King, an independent, won reelection in 2024 by 17 points. One Republican, senator Thom Tillis of North Carolina, is up for reelection in a state won by Trump by a single-digit margin in 2024 at R+3.2.
Change in composition
Each block represents one of the one hundred seats in the U.S. Senate. "D#" is a Democratic senator, "I#" is an Independent senator, and "R#" is a Republican senator. They are arranged so that the parties are separated and a majority is clear by crossing the middle.
Before the elections
Each block indicates an incumbent senator's actions going into the election.
One-term RepublicanTommy Tuberville has filed paperwork to run for re-election.[20] Despite this, there was speculation that he might not run in 2026. However, on November 12, 2024, he announced his plans to seek re-election.[21] He was elected in 2020 with 60.1% of the vote.
Two-term Republican Tom Cotton was re-elected in 2020 with 66.5% of the vote. Democratic activist and candidate for U.S. Senate in 2020 and 2022, Dan Whitfield, has announced his campaign.[23][24]
One-term DemocratJohn Hickenlooper, who was first elected in 2020, has stated that he plans to run for re-election.[4][25] Hickenlooper received 53.5% of the vote in 2020.
One-term Democrat Jon Ossoff is running for re-election to a second term in office.[26] He was first elected in a 2021 runoff with 50.6% of the vote. Republican U.S. Representative Buddy Carter has publicly expressed interest in running.[27] Other potential Republican candidates include Lt. Governor Burt Jones, Secretary of State Brad Raffensperger, former U.S. Senator Kelly Loeffler,[28] and Governor Brian Kemp, who will be term-limited in 2026.[29]
Though there was some speculation that Democratic Kentucky Governor Andy Beshear might seek the open seat, he has stated he does not intend to run, citing his desire to finish out his second term as governor.[35][36]
This will be the first election under a new law which abolished the state's open primary system. Party primaries will be closed off to non-party members, though voters not affiliated with a party can vote in them.[40]
Two-term Democrat Ed Markey was re-elected in 2020 with 66.2% of the vote and is running for re-election to a third full term.[9][42] Markey would be 80 years old on election day; if he were to win reelection to another six year term he would be the oldest senator to represent Massachusetts in the history of the Commonwealth upon being sworn in.[43][44][45] Former governor of Massachusetts Charlie Baker, a Republican, is considering a run for the seat.[46][47][48][49]
One-term Democrat Tina Smith was re-elected in 2020 with 48.7% of the vote after being appointed by the governor in 2018 and subsequently winning a special election that same year.
2024 Republican U.S. Senate nominee Royce White has announced his candidacy.[11]
One-term Republican Cindy Hyde-Smith was re-elected in 2020 with 54.1% of the vote after being appointed in 2018 and subsequently winning a special election that same year. She is running for a second full term in office.[12]
Three-term Democrat Jeanne Shaheen was re-elected in 2020 with 56.6% of the vote. On the Republican side, former U.S. Senator from Massachusetts Scott Brown has publicly expressed interest in running.[54]
Billionaire co-head of the newly established Department of Government Efficiency (DOGE) Vivek Ramaswamy withdrew himself from consideration for the pending Senate appointment; however, his work with the government efficiency commission will end on July 4, 2026, leading to speculation he could be a candidate for the special election if Governor DeWine's appointee forgoes running in the special election to hold the seat for the last two years of senator Vance's term, which expires at noon on January 3, 2029.[61][62]
^ abNesi, Ted; White, Tim (November 15, 2024). "Newsmakers 11/15/2024: US Sen. Jack Reed". WPRI. Retrieved November 19, 2024. At 20:38, Reed says, "I can tell you what I know today: I'm planning run [for re-election]."
^McGrath, Tom (September 4, 2024). "Charlie Baker's (Still) Got Game". Boston Magazine. Retrieved November 26, 2024. But when I dig deeper about a potential Senate run, saying I actually wonder if he'd even be happy as a legislator, he seems to open the door a little..."You tend not to ever get too definitive about any of this stuff," he says. "If you told me in the spring or summer of '22 that I was going to be working for the NCAA, I would have found that to be an unusual question. But I have talked to former Governor, now Senator, Mitt Romney about being in the Senate, and he said it was a pretty interesting place.
^Bade, Rachael; Lizza, Ryan; Daniels, Eugene (July 20, 2023). "Playbook: Scoop: McCarthy's secret promise to Trump". Politico. Retrieved July 20, 2023. South Carolina GOP Rep. RALPH NORMAN is considering a primary challenge to top Trump ally Sen. LINDSEY GRAHAM, according to a source familiar with the situation [...] Outside groups and constituents reached out to Norman to encourage him to run. Norman told them he would consider it.